Closure cap



April 16,1935. ANLOVE 1,998,373

CLOSURE, CAP

Filed Jan. 1'7, 1933 Patented Apr. 16, 1935 UNITED STATES PATENT OFFICE 8 Claims.

This invention relates to closures adapted primarily for use on the dispensing apertures of collapsible tubes now universally used to contain toothpaste, shavingcream, etc.; and also adapted 5 for use as a closure for any kind of flllingor dispensing apertures of containers regardless of size or particular. use.

It is particularly adapted for use as a closure or cap for gasoline tanks of automobiles, tractors,- l busses, etc., and on water radiatorsand crank e filling pip The main object of the invention is to provide a cap of the character referred to which can be very readily moved to and from closing position and which is permanently connected to the container of which it forms a closure.

Another object of the invention .is to provide a cap of this character with means whereby it becomes frictionally locked by the mere act of moving into aperture closing position.

A furtherobject of the invention is to provide a closure of this general character which can be very cheaply manufactured. and readily substituted for the standard screwthreaded caps 25 commonly used on collapsible tubes and similar devices.

Other objects of the invention will become apparent as the detailed description'thereof proceeds. 30 In the drawing: Figure 1 is a top plan of one form of this invention adapted to be applied to the filling pipes of crank case or gasoline tanks of. automobiles or similar vessels;

in Figure l;

Figure 3 is a vertical transverse section taken on the line 3-3 of Figure 1;

Figure 4 is a vertical central section taken 40 through a modified form of the invention shown in Figures '1, 2 and 3, part thereof being shown in elevation;

Figure 5 is a right hand end elevation of the device shown in Figure 4;

Figure 6 is a side elevation of another modification of the invention, with parts broken away and shown in section;

Figure 7 is a view similar to Figure 6, and illustrating a further modification of the invention; and

Figure 8'is'a perspective view of a preferred form of the invention as applied to the small dispensing aperture of a collapsible tube.

The device shown in Figures 1, 2 and 3, is particularly adapted for use, as a closure for large Figure '2 is a side elevation of the device shown size filling or dispensing openings, such as the openings in gasoline tank filling pipes or water radiator inlets of automobiles. In this form of the invention, the cylindrical base member I is shaped as a short section of pipe internally screwthreaded and adapted to be screwed onto the external screwthreads of anypipe or filling neck projecting from a container and designed to receive the base member I. An upper part of the base member I is shaped to provide an outwardly 1o directed flange 2 having a lug 3 projecting outwardly therefrom. The top of the flange 2 directly over the part I is formed as a plane face inclined preferably at any suitable angle to the axis of a cylindrical part I.

The cap 4 has the same general outline as the flange 2 and the lug 3, and is provided with 8. lug 5 adapted to register with the lug 2 when the cap 4 is in closed position. The lugs 3 and 5 are provided with registering apertures 6 and 1, respectively; and a pivot member 8 is passed through the registering apertures 6 and I to fom a pivotal connection of the cap 4 with the base. member I.

The lower face of the cap 4 is inclined to the axis of the cap at the same angle as the top face of the base member I, so that when the cap 4 is rotated into registry with the flange 2 on the base member I, the adjacent surfaces of the flange 2 andcap 4 will form close contact throughout. In order to bring these surfaces into contact with each other, the pivot member or rivet I has a milient washer or spring 9 interposed between the rivet head I0 and the lower face ofv the lug 3.

It will be obvious from inspection of Figures 2 and 3 of the drawing that the spring 9, co-acting with the rivet] and the other elements of the device, will force the cap 4 yieldingly into contact with the inclined face of the flange 2 of the base member 5. The adjacent faces of the lugs 3 and i are slightly dished out so that the outer ends of the lugs 3 and i'contact with each other at the point I I which operates as a species of fulcrum to insure the seating of the cap 4 on the flange 2 of the base member I. e

In order to lock the cap 4 frictionally to the base member I, the aperture l2 of the member I is slightly bevelled or countersunk to receive the correspondingly beveled annular flange formed on the inner face of the cap 4. Inthe drawing, the depth of this flange I3 is greatly exaggerated in order to illustrate the invention clearly. It is intended to have sufllcientdepth to extend slightly into the countersunk aperture i2 so as to form a sort of friction lock to prevent accidental displacement of the cap 4 from is closed position.

In the form of the invention disclosed in Figures 1, 2 and 3; it will'be observed that the axis of the pivot member 3 is substantially parallel to the axis of the cylindrical base member I. In this form of the invention it is, therefore, obvious that the top plane face of the flangev 2 of the base member I is inclined to provide an inclined seat for the correspondingly inclined contacting face of the cap 4.

In the modification shown in Figures 4 and 5,

the devicecomprises a substantially cylindrical inclined at an angle to the plane of contact of the flange l5 and cap i6.

The lugs l1 and I8 are provided with suitable registering apertures to receive the shank of a pivot member or rivet IS. A spring washer 20 is interposed between the lower head of the rivet l3 and the lower. face of the lug II. It will be obvious from inspection of Figures 4 and 5 that if the cap l6 be rotated to the left, looking at Figure 5, from the rear of the lugs l1 and I3, the cap l6 will rise away from the flange l5, because of the inclination of the pivot bolt l3 relative to the axis of the base member l4.

The cap I6 is provided on its inner face with an annular flange 2| adapted to seat in the countersunk aperture 22 of the base member l4. The flange 2| is intended to be of very slight depth so that the cap l6 can be readily unseated by the application of lateral pressure in the proper direction against the edge of the cap l6. In the larger forms of the invention where these caps are adapted to be used to control the apertures of gasoline tanks of automobiles, it will be necessary to provide them with an air vent 23.

In the form of the invention shown in Figure 6, the base member 24 has a lug 25 extending laterally therefrom, andsaid lug 25 has a contact face inclined at an angle to the upper plane end of the base member 24. The cap member 26 is of larger diameter than the base member 24 so that when it is in closed position it extends around the base member 24 to form therewith a flange 21. The cap member 26 is also provided with a lug 23 similar to the lug 25 and inclined to the general plane of the cap 26 so as to co-operate with the lug 25 in raising the cap 26 out of frictionally locked contact with the base member 24 when the cap 25 is rotated about the axis of the pivot mem ber 23, similar to the rivet l9 used in the form of the invention shown in Figures 4 and 5. v The cap 26 is also provided with an inwardly directed projection 36 to serve as a friction lock and hold the cap 26 against accidental displacement when in closed position. x M

The cap 26 may have a recess R formed around the projection 36 to receive a gasket G of any suitable resilient material. This gasket G projects slightly below the inner face of the cap 26 so as to co-operate with the upper end of member 24 and projection 36 in forming a liquid tight closure. 7

In the form of the invention illustrated in Figure 7, the locking effect between the pipe and.

cap is secured by recessing'the cap to receive the upper end of the pipe, and to receive an annular flange formed on said upper end. In this form of the invention, the base member or pipe 3! is internally screwthreaded, and is provided at its upper end with an inturned flange 32 forming a central filling or dispensing aperture 33. A lug 34 extends radially from the member 3i, and is apertured to receive the shank of the pivot bolt 35. I a

A cap 36 of larger diameter than the base member 3| has a pivot lug 31 extending radially therefrom. The lug 31 is also apertured to receive the shank of pivot bolt and a spring 38 interposed between the lower face of lug 34 and a nut 39 serves to hold the cap 36 yieldingly in closed position. It will be understood that sufficient space between the lower face of lug 34 and nut 39 must be provided to permit the cap 36 to rise clear of all projections on the upper end of member 3i to permit the rotation of the cap.

The construction shown in Figure 7 provides a triple locking effect; It will be noted that the upper end of the member 3! has its outer edge provided with a bevel 40 adapted to seat in a correspondingly beveled recess 4! formed in the lower face of the cap 36. The inner face of the cap 36 is also provided with an annular inverted V-shaped recess 42 adapted to receive a correspondingly shaped ring 43 formed on the upper end of the member 3|. A central projection 44 is formed on the lower face of the cap 36 and is adapted to seat in the aperture 33 of the member 3|. By this arrangement, it is obvious that a triple locking effect is produced between the upper end of the member 3| and the cap 38.

The resilient springs interposed between the lower faces of the lugs and the rivet heads in the forms of the inventions shown in Figures 1 to 6, are only necessary where the material used has no inherent resilience to permit the lugs to be secured'by rivets instead of bolts. Where the material used has some inherent resilience, the spring washers may beomitted as in case the invention is to be embodied in a small closure such as would be used on collapsible tubes for holding tooth pastes, shaving creams, etc.

In the form of the invention shown in Figure 8, the base member 45 is shown as applied to the upper part of the container 46, and may be provided with a flat upper face 41 adapted to form a seat for the adjacent lower face of the cap 43. The member 45 and cap 43 are provided with lugs 49 and 56, respectively, which are inclined at an angle to the general plane of the face 41. A rivet 5| serves as a pivot to connect the cap 46 to the base member 45. A small downward projection 52 which is preferably solid in the small forms of the invention, extends downwardly from the lower face of the cap 46 to snap into the counter sunk aperture 53 formed in the center of the top face 41 of the base member 45.

It is thought that the invention and numerous of its attendant advantages will be understood from the foregoing description and it is obvious that numerous changes may be made in the form, construction and arrangement of the several parts without departing from the spirit or scope of my invention, or sacrificing any of its attendant advantages; the forms herein described being a preferred embodiment for the purpose of illustrating my invention. 1

What I claim is:

1. A closure comprising a collar having an inwardly directed flange at one end, a lug extending laterally and outwardly from said collar, a closure cap of larger diameter than said end, a lug extending from said cap, means for resiliently pivoting said lugs to each other, and cooperating means on the end of said collar and the inner face of said cap for frictionaliy locking the cap in closed position on said collar, the plane of contact of said lugs with each other being inclined to the plane of said end.

2. A closure comprising a collar having an inwardly directed flange at its upper end, a lug extending laterally and outwardly from said collar, 9. cap pivoted to said lug, the pivot axis between said cap and lug being inclined to the axis of the collar'whereby rotation of the closure cap causes separation ofthe cap and collar, and co-operating means on said cap and collar for locking the cap frictionally to the collar when the cap is in closing position.

3. A closure comprising a collar, a lugextending laterallyand outwardly from said collar, a cap pivoted to said lug and adapted to swing to and from closing position over the end of said collar, and an annular flange extending from the lower face of said cap and adapted to seat in the upper end of said collar for frictionally locking the capv in closing position on said collar thev pivot axis of the cap and lug being inclined to the axis of said collar.

4. A closure comprising a substantially cylin-' drical collar having the upper end thereof extending in a plane inclined to the axis of thecollar, acap havinga plane face adapted to seat on said upper end, means for pivotally connecting the cap to said collar, and co-operating means on said cap and collar for locking the cap frictionally in closing position on the upper end of said collar.

5. A closure comprising a collar having an inwardly directed flange at its upper end, said end being formed as a plane face inclined to the axis of the collar, a cap having a lug extending laterally therefrom, a lug extending laterally from said collar, means for pivotally connecting said lugs to each other, the pivot axis of said means being parallel to the axis of'said collar, and means projecting from the inner face of said cap for frictionally seating in the upper end of said collar to lock the cap in closing position on said'collar.

6. A closure comprising a cylindrical collar having its upper edge bevelled, a cappivoted to said collar and having'a recess adapted to it over said bevelled edge, and resilient means pivotally connecting said cap to said collar and normally holding said cap with its recess encompass ing the upper bevelled edge of said collar, the pivot axis of said means being inclined to the axis of said collar.

7. A container having an open end, a lug extending outwardly and laterally from said open end, a closure cap normally seated on said end to close the same and having a lug registering with the container lug, means for pivoting said lugs to each other, and means extending inwardly from the inner face of said cap to seat frictionally in said open end, the plane of contact of said lugs with each other being inclined to the plane of said end to raise the cap from its seat by rotation about the pivot axis of said lugs.

8. A container having ,an open end, a lug extendingoutwardly and laterally from said open end, a closure cap normally seated on said end to close the same and having a lug registering with the container lug, means for pivoting said lugsto each other, the plane of contact of said lugs with each other being inclined to the plane of said end, to raise the cap from its seat by rotation about the pivot axis of said lugs.

sonoMoN A. LOVE. 40 

